Julia McKenzie (gebore 17 Februarie 1941) is 'n Engelse aktrise en skryfster. Sy is bekend vir haar rolle in die rolprente Bright Young Things (2003) en Notes on a Scandal (2006), en in die televisiereekse Agatha Christie's Marple (2004) en Cranford (2007).
- 1989: Shirley Valentine
- 1996: Vol-au-vent
- 1996: The Snow Queen's Revenge
- 2003: Bright Young Things
- 2005: These Foolish Things
- 2006: Notes on a Scandal
- 1973: Frost's Weekly
- 1976: Maggie and Her
- 1976: Battle of the Sexes
- 1981: That Beryl Marston...!
- 1982: Password
- 1984: Fresh Fields
- 1984: Sharing Time
- 1989: French Fields
- 1996: Bimble's Bucket
- 2004: Agatha Christie's Marple
- 2007: Cranford
- 1983: Dear Box Number
- 1986: Julia & Company
- 1987: Side by Side by Sondheim
- 1999: The Evening Standard Theatre Awards 1999
- 2007: You Can Choose Your Friends
- 2013: Gangsta Granny
- 2003: The Best of the Two Ronnies: Volume 2
- 2009: Cranford in Detail